下面JS调用代码哪错了
来源:百度知道 编辑:UC知道 时间:2024/05/31 09:00:59
<script type="text/javascript">
function addCart(username,PID,num){
// if(isNull(username)&& isEmpty(username))
if(username=""){
alert("请先登陆!");
return false;
}
if(username!=""){
........
}
}
</script>
<form method="get" >
<input type="image" src="/img/putIntoCart.jpg" onclick=addCart("<%=session("username")%>","001","1") />
</form>
function addCart(username,PID,num){
// if(isNull(username)&& isEmpty(username))
if(username=""){
alert("请先登陆!");
return false;
}
if(username!=""){
........
}
}
</script>
<form method="get" >
<input type="image" src="/img/putIntoCart.jpg" onclick=addCart("<%=session("username")%>","001","1") />
</form>
<script type="text/javascript">
function addCart(username,PID,num){
if(username==""||username==null){
alert("请先登陆!");
return false;
}else{
............
}
}
</script>
你要的答案是这个不??